Radiation therapy uses high-energy rays to damage cancer cells and prevent them from growing. The procedure limits exposure to only those cells in the treated area.
The high-energy rays may come from a large machine (external radiation) or from radioactive materials placed directly in the tumor (internal radiation).
Radiation therapy may be used alone for small tumors or in combination with surgery.
Learn more about other cancer treatments:
Don’t be Trippin’ — Stop Your Dippin’.